Mantle-burner.



, Essex .and 'State of ventedcertain new and useful Improvements without, excessive shock.

Vlb 'it concerti' ROBERT M'. DI'

MANTLE-BURNER.'

No.A 884,137.

:Be 1t. known. that l, vvItoBnRrf.-M. DIXON, residing at East .Orange-.in the county of New Jersey; have inin .Mantle-Burner'aof which the following is a ,full,. .3lear, and exact description, such.' as will enable.,othersskilled inthe artl to which -it ppertainstomake and use the sames.; invention1 relates to an improvement in linca ndes'cent I nantles.A

.-Broadlyspeaking,4 it has forA its object to providea .structure adapted, tov 'be ignited- Incandescent Inantle'sas'- at present conf structed, are ouf-.an exceedin lylfragile-natur'e, and :are incapable .of -Wiistanding-rough usage... Such jmantl ployed. in connectionwith What'is known as f quietly :burning after itst initial ignition, such a Bunsenburnen which delivers-a mixed Agas composed of' oxygen and an oxidizable gas. This mixture is. as is Welll knownyof ai highly explosivenature, and Whileit is capable-of ignitio'n is ..f1nvariabl'y'f a'ccomipaniied' by Aa s arri explosiongftheforce an fiintensity of whic argelyfproportional to' the volume of. the gas f exploding. `In mantle lamps as hitherto constructed-it has been'custofIn-ar'y bring a flame.v or other igniting `mea'nstowardl taneously gthrou hout lits i1 ull extent.

because of the fact that the man-t eis centered toi nite the gasl initiallyby first turning' on the urner and vallowing gasto escape-until a zone Tof ,considerable volume said 'Lzone to cause 'an fignltlon of. the gas, which thereupon Will-sharply explode simul- Because ofthe vo urne of the exlplosiveand within the same, such mantlev is subjected t-o excessive stresses and strains, anduts -lifefis accordingly very materially diminished.

This invention proposes to largely obviate the aforesaid deteriorating defects by reducing the force and intensitv of the explosion and by causing it to take and through an ap rec'iab e interval of time, instead of taking p ace simultaneously.

The invention accordingly consistsin the features of construction, combinations of elements, and arrangement of parts, which will be exemplified in the construction hereinafter sethforth, and the scope of the application of vshich will be indicated in the 4following c alms.

Specification of Letters Patent. A Application led September` 20 1906. Serial No'. 335,502.

es arel commonlyv emu lace fragmentally l xoN, or E'Asr ORANGE, NEW JERSEY, AssIcNoR To THE sA'FETY CAR HEATING a LIGHTING coMrANY, A `c oRio Barron''or NEW JERSEY, l,

have shown one of the vvariousv possible ,e m bodlments of my invention, Figure 1 1s a' sld'e elevation 'ofl a V bu rner l tip andi associated mam i j tle constructed in a'c'cordance with' tlil's mj'- vention, 'parts being `broken aw'ay 'tofinore clearly show certain features' oflthesame; Fig 2 is a vertical section taken Fig. 3 is a like'view' but s @Wing theiinal stages: in the ignition 'ofl vtliegas Whichmaim.

tion.

Similar .reference characters reler toisimil Iller partsV throughthe severalviews of: the' drawing. y In carrying outthisinv ent io1i, I have shown the'same asf applied toV whatls know-n uses Within the scope of In the accompanying draivings, WhereinJI* tliughi .Fig-- 1,-.showing the operationngfthis invention and illustrating ,li'enitial'step in ,theimamner e5. Y tof lighting the mantle pre ar-atory to us e ftains the mantle in .an-incandescent colndi-V i 1s invention. In

such embodiment 1 denotsga burner. tube having adjacent the'en'd ,thereof threads Or ,other means2'for sect-ning the mantle .to said vburner `tube end. The mantle,- designated by 3, may be mounted-upon 'a'.spoolll which and which may be closely attached .thereto 'by means'of a `bindin 'cord or -thelike 53 which'counterrinks Wit in asuitable annular said spoolljwill'l1avela`A close fit u .onl -the burner tube endfand the'partswill eso alf- `may be'of asbestos or othersuitable'.material .y

sol

ranged that the escaping gas will .find exit through the pores oflthe mantle only; f

Insteadof constructing the mantle so as to 'providepores of considerable-size, as has 'nvariably ybeen done heretofore,- I construct my man'tle'in-such a manner that it Will have a very iine mesh, and preferably also Will provide threads of considerable thickness.

he object of this feature of my invention is to have the pores of the mantle of sch minuteness that the mantle may, at least temporarily, serve as a screen in preventing the combustion of the exteriorcgas from simultaneously ca usin an ignition of the 'frases in the interior -of t e mantle, as b t e progression of the combustion throu the pores of the mantle. This will be understood by referring to'Fig. 2, which shows the condition .of the combustion after the initial ignition.

The interior of the mantle is filled with uliheated mantlewill in turn set ire to 'the' burning as, which is, however, continuously flowing t rough the meshes of themantle. The mantle is exteriorly enveloped by a mass of burning gas, indicated by 6, and At is gas is of course continuously re lenished by` unburned as Iiowing from t e interior of the mantle t ough the meshes of the same.

In practice it has been found that the outer developing zone of gases will burn for quite an appreciable time before the second step of the igniting operation takes place. That is to say such envelo ing zone of gases will burn until the mantle liecomes heated or incandescent through the heat engendered by such exterior combustion, and then the highly gases in the interior thereof, or at least be in such condition as will permit of such ignition,

and the condition shownb Fi .v 3 will now be reached. In this condition t ere is anincandescing mass of gas 7 lwithin the interior of the mantle, and the latter is also 'surrounded by the aforesaid exterior zone 6. Itwill l operation o accordingly be seen that the objects and ends of this invention are attained 1n a very simple and'highly satisfactory manner. The igniting a mantle constructed in accordance 'with this invention does not have the disrupting effect upon the mantle which is common to the heretofore 4employed forms. Inoperation, the gas isfirst turned on until it has filled the mantle and has enveloped the same and then theigniter is applied. As a l -resultof this action an inappreciable explosion of e envelopinggases, unaccompanied interior' gases, takes place.

explosion is so gentle that it is more in the nature of a puff, and this is probably due to the fact-that theex lodin tirely unconiined. ter t e enveloping 'gases lhave burned momentarilfyr the mantle ecomes incandescent and sets e to the in- *ner gases, which ignite also, in the manner of fa gentle puff, an'

The so-called explosion is thus r without any undue shock or violence.

divided into-a number of distlnct lparte, and

is without deleterious effect upon t As many changes could be made in the e mantle.l

above construction and manyl apparently widely different embodiments of my tion could be madewithout departing from sense.

gases exteriorly gases are en.

thel scope thereof, I intend that all matter contained in the above description or shown in the accom anying drawings shall be interpreted as illhstratlve and not in a himtlng I Iaving described my invention, what I l claim as new, Patent, isz- 1. In a vdevice of the class described a mantle consisting of woven strands of readily incandescing material, the mesh of said and desire to secure by Letters strands throughout being fine andadapted to constitute a lbarrierto the progression through said mantle of the combustion of enveloping. "said 'mantle whereby an i ition of the interior gases can take place on y preliminarily heated to' incandescence by the initial combustion of the exterior gases.

2. In a device of the class described, in combination, a burner tube and a mantle snugly mounted on the end thereof and arranged to receive in its interior 'gas delivered by said burner tube, said mantle being sufficientl pervious to allow such gas to freely iiow t erethrough and burn the exterior of said mantle, but unadapted throughout to permit the ignition of the interior gas by the rogressive combustion of said exterior uming gaswhen said mantle is at a normal temperature..

3. In a device of the class described, in

by contact with the mantle combination, a burner tube and a mantle closely ROBERT M. DI-XoN. Witnesses:

' G. R. Jawm'r,

Emma E. AnLnU.

interfitting withand carried by the' vend of said tube whereby combustion may 

